ML 350 G6 Processor socket cover?!

Hello,

I have inherited a ML350 G6, but it has issues. It was put together with parts from a couple other ML 350's. The tech added a 2nd processor, but failed to install a 3rd or 4th fan, so it will not boot (due to "fan solution not sufficient"). Before I source a 3rd fan, I would like to pull the 2nd processor out and get it running to see if the other components are working, or if this thing is just junk.

My question is, what was covering the 2nd processor socket, before the processor was installed? Can I run it with out this cover in place. It looks like a plastic cover from what I can see by googling. Will the server boot up if this is not installed?